Method for preparing artificial glass surface

ABSTRACT

The present invention provides a method for preparing an artificial glass surface, which includes the following steps: step A: mixing a glass material and a silane coupling agent to obtain an initial glass material mixture. Step B: heating a silicone resin, mixing with the initial glass material mixture thoroughly to obtain a secondary glass material wrapper. Step C: adding an unsaturated polyester resin, a curing agent, a filler pigment, and a quartz material to obtain a glass surface premade material. Step D: pressing the glass surface premade material, curing to obtain the artificial glass surface. In this invention, the quality of the product is maintained at a high level, mineral resources are conserved, and production cost is lowered.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and benefits of Chinese PatentApplication No. 201811009805.7 filed on Aug. 31, 2018, and the entirecontent of which is incorporated herein by reference.

FIELD OF THE INVENTION

The invention relates to the technical field of artificial stonesurfaces, in particular to a method for preparing an artificial glasssurface.

BACKGROUND OF THE INVENTION

In recent years, the manufacture and sales of artificial stones havegradually improved and matured. The term “artificial stones” usuallyrefers to artificial stone solid surfaces, artificial quartz stones, andartificial granite stones, among others. There are many types ofartificial stones, and different types of artificial stones havedifferent components. However, most artificial quartz stones areproduced using 70-95% of quartz, resin, pigments, and other additivesincluding conditioners, adhesives or curing agents, and under vacuum,high temperature and pressure. Quartz sands and quartz powder inartificial quartz stones are produced by grinding mining products whichare non-renewable. If the main stone source of artificial quartz stonesis only quartz sand or quartz powder, manufacturing cost would be high;in addition, such artificial quartz stones would have a poor decorativeeffect and poor material performance.

In the prior art, in order to control the production cost of artificialquartz stones and to conserve mineral resources, glass fragments arealso added in production, during which they are directly mixed withquartz sand or quartz powder. However, for the glass fragments toexhibit good decorative effects and for the artificial stones producedto have good material performance, the size of the glass materialsshould not be too small. Glass fragments that are commonly employed havea lot of edges and corners, which leads to a poor fluidity of thematerial. When pressed into a slate, the surface of the slate wouldappear uneven, or the thickness of the slate would be inconsistent,which is due to uneven material texture as a result of unbalancedinternal forces. The slate produced is prone to cracking or particlespeeling off. Therefore, glass materials are not used as the main stonesource of artificial stones in the prior art.

SUMMARY OF THE INVENTION

The objective of the present invention is to provide a method forpreparing an artificial glass surface; the artificial glass surfaceemploys glass fragments as its main stone source and is better inquality.

To overcome the shortcomings of the prior art, the present inventionprovides a method for preparing an artificial glass surface, whichincludes the following steps:

Step A: adding 40-70 parts of a glass material and 1-3 parts of a silanecoupling agent into a trough, stirring and mixing thoroughly to obtainan initial glass material mixture;

Step B: heating 5-15 parts of a silicone resin to 30-50° C., then addingthe silicone resin into the trough; stirring and mixing the siliconeresin with the initial glass material mixture thoroughly to obtain asecondary glass material wrapper;

Step C: adding 8-15 parts of an unsaturated polyester resin, 1-3 partsof a curing agent, 3-8 parts of a filler pigment, and 0-30 parts of aquartz material to the secondary glass material wrapper in the trough;stirring and mixing thoroughly to obtain a glass surface premadematerial;

Step D: placing the glass surface premade material in a mold frame,pressing to form a pre-fired surface; curing the pre-fired surface in acuring oven to obtain the artificial glass surface.

As an improvement of the technical solution above, the stirring andmixing of step A involve stirring at a low speed for 1-2 minutes with amixer operating at 10-20 Hz.

As an improvement of the technical solution above, the stirring andmixing in step B involve stirring at a low speed for 4-6 minutes with amixer operating at 10-20 Hz, followed by stirring at a high speed for1-3 minutes with a mixer operating at 40-60 Hz.

As an improvement of the technical solution above, the stirring andmixing in step C involve stirring at a low speed for 2-4 minutes with amixer operating at 10-20 Hz, followed by stirring at a high speed for1-3 minutes with a mixer operating at 40-60 Hz.

As an improvement of the technical solution above, step D involvescuring the pre-fired surface in a curing oven in an oven at 100-130° C.

As an improvement of the technical solution above, the glass material isglass sand, the glass sand has a particle size of 26-150 mesh; thequartz material is quartz powder or quartz sand, the quartz powder has aparticle size of 200-450 mesh, the quartz sand has a particle size of26-120 mesh.

As an improvement of the technical solution above, the modified siliconeresin is polyorganosiloxane with a highly cross-linked networkstructure.

As an improvement of the technical solution above, the unsaturatedpolyester resin is a linear polymer compound having an ester bond and anunsaturated double bond, the linear polymer is formed bypolycondensation of an unsaturated dibasic acid diol or a saturateddibasic acid unsaturated diol.

As an improvement of the technical solution above, the silane couplingagent is γ-methacryloxypropyltrimethoxysilane.

As an improvement of the technical solution above, the curing agent istert-butyl 2-ethylhexanoate.

Comparing with the prior art, the beneficial effects of the presentapplication are as follows:

The present invention has disclosed a method for preparing an artificialglass surface. The main stone source of the artificial glass surface isa glass material. In order to tackle the issue of a poor fluidity of alarge amount of glass material during preparation, a modified siliconeresin and an unsaturated polyester resin are included in the rawmaterials. The glass material is the main stone source; the modifiedsilicone resin acts a wrap to cover the surfaces of the glass fragments,reducing surface tension, thereby increasing the fluidity of the glassfragments. An addition reaction system is designed, and the polymer witha cross-linked network structure is formed by reacting a vinyl groupconnected to the silicon atom of the modified silicone resin withstyrene in the unsaturated polyester resin. In this way, the glassmaterial can be firmly bonded to the product, any cracking or thefalling off of glass particles can be avoided. In addition, the amountof each of the raw materials of the glass surface is further optimized,allowing the production of artificial glass surfaces using recyclablewaste glass materials as their main stone source. The present inventionovercomes the problems of uneven surface, inconsistent thickness, proneto cracking or particles peeling off due to a poor fluidity of thematerial caused by a large number of edges and corners present in glassfragments. Furthermore, glass can be recycled and used in the productionof artificial stones; this contributes to the conservation of mineralresources and reduces the production cost of artificial stones. Thismethod thus has considerable social significance. In addition, theartificial glass surface of this invention is a food grade product andis environmentally friendly.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

To more clearly illustrate the aims, technical solutions, and beneficialeffects of the present invention, the present invention is furtherdescribed in detail below.

The present invention provides a method for preparing an artificialglass surface, which includes the following steps:

Step A: adding 40-70 parts of a glass material and 1-3 parts of a silanecoupling agent into a trough, stirring and mixing thoroughly to obtainan initial glass material mixture.

Preferably, the stirring and mixing of step A involve stirring at a lowspeed for 1-5 minutes with a mixer operating at 10-20 Hz.

More preferably, the stirring and mixing of step A involve stirring at alow speed for 1-2 minutes with a mixer operating at 10-20 Hz.

Step A adopts a low-speed stirring, and the stirring and mixing time islimited to 1-5 minutes. This ensures sufficient mixing while preventingcost increase due to excessive stirring time. Furthermore, if the mixeris operating at lower than 10 Hz, the overall stirring result isundesirable; if the mixer is operating at higher than 20 Hz, the glassmaterial may be broken by the mixer, which affects the quality of thefinal product.

Step B: heating 5-15 parts of a silicone resin to 30-50° C., then addingthe silicone resin into the trough; stirring and mixing the siliconeresin with the initial glass material mixture thoroughly to obtain asecondary glass material wrapper.

Preferably, the stirring and mixing in step B involve stirring at a lowspeed for 3-10 minutes with a mixer operating at 10-20 Hz, followed bystirring at a high speed for 1-5 minutes with a mixer operating at 40-60Hz.

More preferably, the stirring and mixing in step B involve stirring at alow speed for 4-6 minutes with a mixer operating at 10-20 Hz, followedby stirring at a high speed for 1-3 minutes with a mixer operating at40-60 Hz.

In Step B, a low-speed stirring is first adopted, and then followed by ahigh-speed stirring. This is because a small amount of liquid resin hasbeen added; increasing mixing frequency and prolonging mixing timeallows thorough mixing while reducing cost and material damages.

Step C: adding 8-15 parts of an unsaturated polyester resin, 1-3 partsof a curing agent, 3-8 parts of a filler pigment, and 0-30 parts of aquartz material to the secondary glass material wrapper in the trough;stirring and mixing thoroughly to obtain a glass surface premadematerial.

Preferably, the stirring and mixing in step C involve stirring at a lowspeed for 1-8 minutes with a mixer operating at 10-20 Hz, followed bystirring at a high speed for 1-5 minutes with a mixer operating at 40-60Hz.

More preferably, the stirring and mixing in step C involve stirring at alow speed for 2-4 minutes with a mixer operating at 10-20 Hz, followedby stirring at a high speed for 1-3 minutes with a mixer operating at40-60 Hz.

In step C, after the unsaturated polyester resin, the curing agent, thefiller pigment and the quartz material are added, a low-speed stirringis also first adopted, which is then also followed by a high-speedstirring. However, comparing to step B, the time for the low-speedstirring needs to be shortened to allow thorough mixing while reducingcost and material damages.

In steps A, B and C, the mixer operates at different frequencies and mixfor varying time spans to allow a better fluidity of the glass materialthrough thorough mixing, without disrupting the network structure of thepolymer by over-mixing; this ensures that the glass material does notfall off. The preparation process is more efficient and precise, and theproduct quality is higher.

Step D: placing the glass surface premade material in a mold frame,pressing to form a pre-fired surface; curing the pre-fired surface in acuring oven to obtain the artificial glass surface.

Preferably, in step D, the temperature for curing the pre-fired surfacein the curing oven is within a range of 100-130° C. More preferably, thecuring temperature is within a range of 100-150° C.

The curing temperature of the present invention is 100-130° C., which isslightly higher than normal curing temperatures. This is because amodified silicone resin is added in the present invention. Setting thecuring temperature to >100° C. accelerates the reaction, and the productobtained is denser. In addition, the curing temperature is controlled at<130° C., otherwise cracking is likely to occur.

In addition, the artificial glass surface of the present invention ismade from the following raw materials in parts by mass:

0-30 parts of a quartz material, 40-70 parts of a glass material, 5-15parts of a modified silicone resin, 8-15 parts of an unsaturatedpolyester resin, and 5-14 parts of additional raw materials.

Preferably, the artificial glass surface is made from the following rawmaterials in parts by mass:

10-20 parts of the quartz material, 50-65 parts of the glass material,6-12 parts of the modified silicone resin, 10-15 parts of theunsaturated polyester resin, and 7-12 parts of the additional rawmaterials.

More preferably, the artificial glass surface is made from the followingraw materials in parts by mass:

15-20 parts of the quartz material, 55-60 parts of the glass material,8-10 parts of the modified silicone resin, 10-12 parts of theunsaturated polyester resin, and 8-10 parts of the additional rawmaterials.

In the compositions above, the glass material is the main material,which may be supplemented with a quartz material; the quartz material isquartz powder or quartz sand. The particle size of the quartz powder is200-450 mesh, and the particle size of the quartz sand is 26-120 mesh.The glass material is glass sand, its particle size is 26-150 mesh. Byselecting glass material and quartz material of these sizes, thefluidity of the artificial glass surface during its production can befurther improved, and the product is of better quality. Therefore, it isvital to further limit the particle sizes of the glass material and thequartz material in order to improve the quality of the artificial glasssurfaces.

It should be noted that the combinations of particle sizes of the glassmaterial and the quartz material may be any random combinations,although the overall effect is better when the particle size of theglass material is large and the particle size of the quartz powder issmall. If the particle size of the glass sand is greater than 150 mesh,more resin is required for pressing and leveling. If the particle sizeof the glass sand is less than 26 mesh, the glass surface would appearuneven. If the particle size of the quartz powder is greater than 450mesh, it is too small, and the particles are prone to cluster duringmixing, causing inconveniences in operation. If the particle size of thequartz powder is less than 200 mesh, it is quartz sand. In thisinvention, quartz sand can also be added, but its amount should becontrolled within 30 parts, otherwise too little glass material is used,which does not contribute to mineral resource conservation.

It should be noted that the source of the glass sand is glass fragments.Glass sand is glass fragments sieved into different particle sizes.

In the compositions above, the modified silicone resin ispolyorganosiloxane with a highly cross-linked network structure. Thiscompound contains more vinyl groups connecting to the silicon atoms ofthe silicone resin. These vinyl groups react with styrene in theunsaturated polyester resin to form a polymer with a more extensivenetwork structure, thereby further increasing the adhesion between theglass material and the artificial glass surface body, preventingparticles from peeling off. The quality of the artificial glass surfaceproduct is thus further improved.

It should be noted that the modified silicone resin is a highlycross-linked macromolecule formed by polymerization of organosiloxanesmall molecules via the sol-gel process. Preferably, in this method, thegelling time is 10-120 minutes; the temperature is 200-220 degreesCelsius. These conditions ensure the formation of polyorganosiloxanewith a highly cross-linked network structure.

In the compositions above, the unsaturated polyester resin is a linearpolymer compound having an ester bond and an unsaturated double bond.The linear polymer is formed by polycondensation of an unsaturateddibasic acid diol or a saturated dibasic acid unsaturated diol. Thelinear polymer compound contains some styrene, which rapidly reacts withvinyl groups connected to silicon atoms of the modified silicone resinvia addition reactions, thereby increasing the reaction rate andpromoting rapid formation of the polymer with a network structure.

Specifically, the unsaturated polyester resin is 721-9 resin fromNantong Tianhe Resin Co., Ltd., but other unsaturated polyester resinshaving an ester bond and an unsaturated double bond are all within thescope of the present invention.

A modified silicone resin and an unsaturated polyester resin are used inthis invention. The synergistic action of the two gives a good adhesiveeffect, and the glass surface product is denser and more uniform. Theincreased adhesion between the glass material and the artificial glasssurface body effectively prevents particles from peeling off. As aresult, the artificial glass surface product is of better quality.

The modified silicone resin and unsaturated polyester resin of thepresent invention are food grade and environmentally friendly materials.They do not contain any metals. They provide strong adhesion effectswhich allow the production of high quality, food grade, andenvironmentally friendly artificial glass surface products.

In the compositions above, the additional raw materials are 1-3 parts ofa silane coupling agent, 1-3 parts of a curing agent, and 3-8 parts of afiller pigment. After the curing agent and the silane coupling agent areadded according to the ratio specified, the fluidity of the glassmaterials during the preparation of the artificial glass surface ismaintained at a good level, curing speed and integrity of the artificialglass surface are greatly improved.

Specifically, the silane coupling agent isγ-methacryloxypropyltrimethoxysilane. The technical solution of thepresent invention includes a large amount of glass material. An ordinarycoupling agent may not satisfy the level of adhesion required for theartificial glass surface. Insufficient adhesion leads to a decreasedfluidity of the glass material, and the glass material is prone to falloff. Therefore, the silane coupling agent mentioned above is employedfor its better filling and tacking abilities in inorganic materials.After a series of experiments, γ-methacryloxypropyltrimethoxy was foundto be the best silane coupling agent for the present invention.

Specifically, the curing agent is tert-butyl 2-ethylhexanoate peroxide,which can be combined with additional raw materials to achieve goodcuring results during the production of artificial glass surfaces.

The present invention is explained in more detail in the followingembodiments.

I. Formulation: the components of the embodiments are as shown in Table1 below, wherein:

the glass material is glass sand, its particle size is 80 mesh;

the quartz material is quartz powder, its particle size is 325 mesh;

the modified silicone resin is polyorganosiloxane with a highlycross-linked network structure. It is purchased from Shenzhen Ji-PengSilicon Fluoride Materials Co., Ltd., its product number is SH-9502;

the unsaturated polyester resin is a linear polymer compound formed bypolycondensation of an unsaturated dibasic acid diol or a saturateddibasic acid unsaturated diol. The unsaturated polyester resin ispurchased from Nantong Tianhe Resin Co., Ltd., its product number is721-9.

The silane coupling agent is γ-methacryloxypropyltrimethoxysilane, whichis purchased from GBXF Silicones Co., Ltd, its product number is GX570.

The curing agent is tert-butyl 2-ethylhexanoate peroxide, which ispurchased from Lianyungang Sino More New Material Co., Ltd., its productnumber is V8.

II. Preparation method

Step A: adding the glass material and the silane coupling agent into atrough, stirring at a low speed for a time period of tl until thoroughlymixed to obtain an initial glass material mixture;

Step B: Heating the silicone resin to a temperature of T1; adding theheated silicone resin into the trough; stirring first at a low speed fora time period of t2 and then at a high speed for a time period of t3 tothoroughly mix with the initial glass material mixture in order toobtain a secondary glass material wrapper;

Step C: adding the unsaturated polyester resin, the curing agent, thefiller pigment, and the quartz material to the secondary glass materialwrapper in the trough; stirring first at a low speed for a time periodof t4, then at a high speed for a time period of t5 until thoroughlymixed to obtain a glass stone premade material;

Step D: placing the glass stone premade material in a mold frame,pressing to form a pre-fired surface; placing the pre-fired surface in acuring oven to cure at a temperature T2 to obtain the artificial glasssurface.

Mixing times t1, t2, t3, t4, t5 and temperatures T1, T2 are set asaccording to Table 3 below.

Following the components and preparation methods stated above, theamount of each component is adjusted in other embodiments to obtaindifferent glass surfaces (see Table 1, the amount of each componentlisted in Table 1 are all expressed in parts by mass). The qualities ofthe products obtained are compared in Table 2 below.

TABLE 1 Raw Material Components Em- Quartz Glass Modified UnsaturatedSilane Filler bodi- mate- mate- silicone polyester coupling Curing pig-ments rial rial resin resin agent agent ment 1 0 70 10 10 2 2 5 2 15 4010 10 2 2 5 3 30 40 10 10 2 2 5 4 15 55 10 10 2 2 5 5 15 70 10 10 2 2 56 15 80 10 10 2 2 5 7 15 80 15 15 2 2 5 8 15 55 5 10 2 2 5 9 15 55 15 102 2 5 10 15 55 20 10 2 2 5 11 15 55 0 10 2 2 5 12 15 55 10 5 2 2 5 13 1555 10 15 2 2 5 14 15 55 10 0 2 2 5 15 15 55 10 20 2 2 5 16 15 55 10 20 12 5 17 15 55 10 20 3 2 5 18 15 55 10 20 0 2 5 19 15 55 10 20 5 2 5 20 1555 10 20 2 1 5 21 15 55 10 20 2 3 5 22 15 55 10 20 2 0 5 23 15 55 10 202 5 5 24 20 52 10 10 2 2 4

TABLE 2 Product Testing Results Embodiments Product testing results 1Flat surface, no cracking, no glass material falling off 2 Flat surface,no cracking, no glass material falling off 3 Flat surface, no cracking,no glass material falling off 4 Flat surface, no cracking, no glassmaterial falling off 5 Flat surface, no cracking, no glass materialfalling off 6 Flat surface, cracking, glass material falling off 7 Flatsurface, cracking, glass material falling off 8 Flat surface, nocracking, no glass material falling off 9 Flat surface, no cracking, noglass material falling off 10 No cracking, no glass material fallingoff, curing time is too long, uncontrollable texture on the surface 11Uneven surface, cracking, glass material falling off 12 Flat surface, nocracking, no glass material falling off 13 Flat surface, no cracking, noglass material falling off 14 Uneven surface, cracking, glass materialfalling off 15 Uneven surface, cracking, glass material falling off 16Flat surface, no cracking, no glass material falling off 17 Flatsurface, no cracking, no glass material falling off 18 Flat surface, nocracking, no glass material falling off 19 Flat surface, no cracking, noglass material falling off 20 Flat surface, no cracking, no glassmaterial falling off 21 Flat surface, no cracking, no glass materialfalling off 22 Flat surface, no cracking, no glass material falling off,curing time is too long 23 Flat surface, no cracking, no glass materialfalling off 24 Flat surface, no cracking, no glass material falling off

TABLE 3 Parameter Settings of the Preparation Method Embodiments t1 t2t3 t4 t5 T1 T2 1 1 min 4 min 1 min 2 min 1 min 30° C. 100° C. 2 1 min 4min 1 min 2 min 1 min 30° C. 100° C. 3 1 min 4 min 1 min 2 min 1 min 30°C. 100° C. 4 1 min 4 min 1 min 2 min 1 min 30° C. 100° C. 5 1 min 4 min1 min 2 min 1 min 30° C. 100° C. 6 1 min 4 min 1 min 2 min 1 min 35° C.105° C. 7 1 min 4 min 1 min 2 min 1 min 35° C. 105° C. 8 1 min 4 min 1min 2 min 1 min 35° C. 105° C. 9 1 min 5 min 2 min 3 min 2 min 35° C.105° C. 10 1 min 5 min 2 min 3 min 2 min 35° C. 105° C. 11 1 min 5 min 2min 3 min 2 min 40° C. 110° C. 12 1 min 5 min 2 min 3 min 2 min 40° C.110° C. 13 2 min 5 min 2 min 3 min 2 min 40° C. 110° C. 14 2 min 5 min 2min 3 min 2 min 40° C. 110° C. 15 2 min 5 min 2 min 3 min 2 min 40° C.110° C. 16 2 min 5 min 2 min 3 min 2 min 45° C. 120° C. 17 2 min 6 min 3min 4 min 3 min 45° C. 120° C. 18 2 min 6 min 3 min 4 min 3 min 45° C.120° C. 19 2 min 6 min 3 min 4 min 3 min 45° C. 120° C. 20 2 min 6 min 3min 4 min 3 min 45° C. 120° C. 21 2 min 6 min 3 min 4 min 3 min 50° C.130° C. 22 2 min 6 min 3 min 4 min 3 min 50° C. 130° C. 23 2 min 6 min 3min 4 min 3 min 50° C. 130° C. 24 2 min 6 min 3 min 4 min 3 min 50° C.130° C.

In the embodiments above, the amount of the quartz material is limitedto 0-30 parts, so that unlike the prior art, the main stone source ofthe artificial glass surface is glass material instead of quartz sand orquartz powder.

As shown in embodiments 1-7 in the tables above, when the amount ofother components is unchanged, an amount of glass material within therange of 40-70 parts ensures that the surface of the product is flatwith no cracking, and the glass material does not fall off.

As shown in embodiments 4 and 8-11 in the tables above, when the amountof other components is unchanged, an amount of the modified siliconeresin within the range of 5-10 parts ensures that the surface of theproduct is flat with no cracking, and the glass material does not falloff.

As shown in embodiments 4 and 12-15 in the tables above, when the amountof other components is unchanged, an amount of the unsaturated polyesterresin within the range of 5-10 parts ensures that the surface of theproduct is flat with no cracking, and the glass material does not falloff.

As shown in embodiments 16-23 in the tables above, when the amount ofother components is unchanged, an amount of the silane coupling agentand an amount of the curing agent within the range of 1-3 parts ensurethat the surface of the product is flat with no cracking, and the glassmaterial does not fall off.

As shown in embodiments 18 and 22 in the tables above, when the amountsof the additional components are unchanged, an amount of the modifiedsilicone resin and an amount of unsaturated polyester resin within theclaimed ranges ensure that the surface of the product is flat with nocracking, and the glass material does not fall off.

Embodiment 24 is the most preferred embodiment of the presentapplication. The amount of the filler pigment determines the color ofthe product; it is not related to quality indicators such as flatness,cracking and the falling off of the glass material. The amount of fillerpigment can be determined according to practical color requirements.

Technical tests performed on the artificial glass surfaces and theresults are shown in Table 4.

TABLE 4 Number Test items Test methods Results 1 Wear resistance ASTM29.1 C241/C241M-15ε1 2 Bending strength ASTM C880/ Dry: 59.5 MPaC880M-15 Wet: 65.8 MPa 3 Impact resistance EN 14617-9: 2005 15.30 J 4Compressive ASTM C170/ Dry: 231.9 MPa strength C170M-17 Wet: 232.6 MPa 5Water absorption ASTM C97/ Water absorption ratio and C97M-18 ratio:0.03% specific gravity Density: 2.20 6 Pollution resistance ANSIZ124.6-2007 Pollution resistance Section 5.2 level: 53 Maximumcontamination depth: 0.03 mm

From the results above, it can be concluded that the artificial glasssurface of the invention has good wear resistance, good impactresistance, high bending strength, high compressive strength, low waterabsorption ratio and good pollution resistance.

Concluding from the embodiments above, the present invention hasdisclosed a method for preparing an artificial glass surface. The mainstone source of the artificial glass surface is a glass material. Inorder to reduce the poor fluidity of a large amount of glass materialduring preparation, a modified silicone resin and an unsaturatedpolyester resin are included in the raw materials. The glass material isthe main stone source; the modified silicone resin acts a wrap to coverthe surfaces of the glass fragments, reducing surface tension, therebyincreasing the fluidity of the glass fragments. An addition reactionsystem is designed, and the polymer with a cross-linked networkstructure is formed by reacting a vinyl group connected to the siliconatom of the modified silicone resin with styrene in the unsaturatedpolyester resin. In this way, the glass material can be firmly bonded tothe product, any cracking or the falling off of glass particles can beavoided. In addition, the amount of each of the raw materials of theglass surface is further optimized, allowing the production ofartificial glass surfaces using recyclable waste glass materials astheir main stone source. The present invention overcomes the followingproblems including uneven surface, inconsistent thickness, prone tocracking or particles peeling off due to a poor fluidity of the materialcaused by a large number of ledges and corners present in glassfragments. Furthermore, glass can be recycled and used in the productionof artificial stones; this contributes to the conservation of mineralresources and reduces the production cost of artificial stones. Thismethod thus has considerable social significance. In addition, theartificial glass surface of this invention is a food grade product andis environmentally friendly.

The disclosure above is only preferred embodiments of the presentinvention, and is not intended to limit the scope of the presentinvention. Equivalent changes based on the claims of the presentinvention are still within the scope of the present invention.

What is claimed is:
 1. A method for preparing an artificial glasssurface, characterized in that it includes the following steps: Step A:adding 40-70 parts of a glass material and 1-3 parts of a silanecoupling agent into a trough, stirring and mixing thoroughly to obtainan initial glass material mixture; Step B: heating 5-15 parts of asilicone resin to 30-50° C., then adding the silicone resin into thetrough; stirring and mixing the silicone resin with the initial glassmaterial mixture thoroughly to obtain a secondary glass materialwrapper; Step C: adding 8-15 parts of an unsaturated polyester resin,1-3 parts of a curing agent, 3-8 parts of a filler pigment, and 0-30parts of a quartz material to the secondary glass material wrapper inthe trough; stirring and mixing thoroughly to obtain a glass surfacepremade material; Step D: placing the glass surface premade material ina mold frame, pressing to form a pre-fired surface; curing the pre-firedsurface in a curing oven to obtain the artificial glass surface.
 2. Themethod for preparing an artificial glass surface, characterized in thatthe stirring and mixing of step A involve stirring at a low speed for1-2 minutes with a mixer operating at 10-20 Hz.
 3. The method forpreparing an artificial glass surface, characterized in that thestirring and mixing in step B involve stirring at a low speed for 4-6minutes with a mixer operating at 10-20 Hz, followed by stirring at ahigh speed for 1-3 minutes with the mixer operating at 40-60 Hz.
 4. Themethod for preparing an artificial glass surface according to claim 1,characterized in that the stirring and mixing in step C involve stirringat a low speed for 2-4 minutes with a mixer operating at 10-20 Hz,followed by stirring at a high speed for 1-3 minutes with the mixeroperating at 40-60 Hz.
 5. The method for preparing an artificial glasssurface according to claim 1, characterized in that step D involvescuring the pre-fired surface in the curing oven at 100-130° C.
 6. Themethod for preparing an artificial glass surface according to claim 1,characterized in that the glass material is glass sand, the glass sandhas a particle size of 26-150 mesh; the quartz material is quartz powderor quartz sand, the quartz powder has a particle size of 200-450 mesh,the quartz sand has a particle size of 26-120 mesh.
 7. The method forpreparing an artificial glass surface according to claim 1,characterized in that the silicone resin is polyorganosiloxane with across-linked network structure.
 8. The method for preparing anartificial glass surface according to claim 1, characterized in that theunsaturated polyester resin is a linear polymer compound having an esterbond and an unsaturated double bond, the linear polymer is formed bypolycondensation of an unsaturated dibasic acid and a diol, or asaturated dibasic acid and an unsaturated diol.
 9. The method forpreparing an artificial glass surface according to claim 1,characterized in that the silane coupling agent isγ-methacryloxypropyltrimethoxysilane.
 10. The method for preparing anartificial glass surface according to claim 1, characterized in that thecuring agent is tert-butyl 2-ethylhexanoate.